M.Tech., Abstract: The necessity for high demand in signal quality by indoor users can be traced to the fact that high percentage of audio/visual streaming, online conferences and social media services are said to be done in an indoor environment. In time past, eNB/macrocell has served as a traditional form of expanding signal quality by telecommunication service providers until the emergence of small cells which includes pico-cell, femtocells and micro-cells. In this work, an evaluation was considered as to how the effect of femtocells will over-ride the negative effect of poor indoor signal quality in a 4G LTE network. Specifics was based on indoor environment based on the fact that there is high rate of communication works done indoor as compared to an outdoor environment. With respect to an indoor environment considered in this research, femtocell was used for signal quality evaluation of 4G LTE network in an indoor scenario. Femtocell which has a low capital expenditure (CAPEX) and operating expenditure (OPEX) has been adopted as a remedy to poor indoor signal quality. Therefore, in this work, a sub-urban environment case with 5 houses in horizontal form were considered. A macrocell was placed at a certain distance from the buildings so as to test for two scenarios. A case with only macrocell and a case of femtocells overlaid on the pre-existing macrocell. Based on the adopted model, simulation was done through MATLAB for evaluation of the above stated cases. The performance of the network was evaluated in terms of Signal to Noise Ratio (SNR). While testing for the SNR, it was inferred that the SNR value which was 45dB at the cell site decreased per user distance away from it such that the signal quality of the user placed at the center of the house was assumed to be poor respectively...